CN107606309A - A kind of deep-water subsea pipeline pipeline section connection operation device and method - Google Patents

A kind of deep-water subsea pipeline pipeline section connection operation device and method Download PDF

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Publication number
CN107606309A
CN107606309A CN201710850435.9A CN201710850435A CN107606309A CN 107606309 A CN107606309 A CN 107606309A CN 201710850435 A CN201710850435 A CN 201710850435A CN 107606309 A CN107606309 A CN 107606309A
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China
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ring
connection
corrosion
extra large
support
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CN201710850435.9A
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CN107606309B (en
Inventor
刘新福
刘春花
周超
李晖
陈凤官
陈晓宁
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Qingdao University of Technology
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Qingdao University of Technology
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Publication of CN107606309B publication Critical patent/CN107606309B/en
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Abstract

The invention provides a kind of deep-water subsea pipeline pipeline section connection operation device and method, the quick connection applied to submarine pipeline.Connection operation device is constructed using symmetrical formula, and the multi-metal Sealing Technology formed using sealing ring and sealing ring, connection operation method implement prefabricated submarine pipeline, sealer docking, the docking of connection operation device, the underwater a whole set of work flow for being fixedly connected and coating and dismantling under water successively;Sliding sealer completes extra large pipe connection and being fixedly connected and sealing between prefabricated anchor ring, and connection pipeline section realizes extra large pipe connection and lifts the connection between rope, and anti-corrosion support realizes the positioning of movable corrosion-preventing device and the connection of each hydraulic cylinder of extra large pipe connection;The protection block of movable corrosion-preventing device is connected with anti-corrosion support through anchor tip and free joint and the connection of linkage section corrosion-preventing device protection block is connected by connecting bend with connecting pipe and forms galvanic cell, prevents sliding sealer, extra large pipe connection and connection pipeline section by ooze corrosion.

Description

A kind of deep-water subsea pipeline pipeline section connection operation device and method
Technical field
The present invention relates to the quick connection operation device between a kind of deep water hydrocarbon field submarine pipeline pipeline section and its connection to make Industry method.
Background technology
The submarine pipeline in deep water hydrocarbon field is responsible for the qualified crude oil after crude oil Produced Liquid, processing, the associated gas after processing Etc. the task of oil gas medium conveying, deep-water subsea pipeline connection technology is vital link in the extra large pipe construction operation of laying, And it is widely used in the engineering practice such as deep water hydrocarbon field and the maintenance of underwater submarine pipeline.
Deep water hydrocarbon field submarine pipeline interconnection technique can be summarized as according to its operation principle:Flange pipeline interconnection technique, Clamping hoop type pipeline connection technology and claw type pipeline interconnection technique.Wherein, flange pipeline interconnection technique is generally used for land oil The connection operation in letter shoot road, during construction applied to submarine pipeline connection operation, it is necessary to connect the installation tool of equipment with There is the centering of degree of precision between submarine pipeline bump joint, and supporting special operation is needed during connection operation The hydraulic system of equipment and high synchronism provides power for pipe jointer, and connection operation man-hour is longer and is unable to reach quick The purpose of connection.The characteristics of clamping hoop type pipeline connection technology is the simple structure of the pipe jointer, convenient disassembly and overall chi It is very little small, but its shortcoming is to be difficult to the automatic connection operation of deep water hydrocarbon field submarine pipeline, and the installation of connection operation Precision is relatively low.Claw type pipeline interconnection technique is referred to as because the structure of the pipe jointer does not use Bolted Flanged Connection For " nonstandard of flanges " interconnection technique, the pipe jointer itself has certain alignment function, claw type pipeline connection skill Art is more representative with the product of the offshore companies such as Cameron, FMC Corporation, Oil States, jack catchs type pipe The characteristics of road connector is that the action of deep-water subsea pipeline connection operation is simple and connection is reliable, greatly shortens connection man-hour, so And to be connection operation production technology grasp in specialized company's hand abroad its shortcoming always, and claw type pipeline interconnection technique at present Development still imperfection.In addition, domestic deep-water subsea pipeline connection technology is still in development, does not possess also and complete sea alone The ability of upper connection operation.
The content of the invention
In order to effectively solve the quick connectivity problem of deep-water subsea pipeline and overcome existing submarine pipeline connector and connection The defects of operation scheme is present and deficiency, it is an object of the invention to provide a kind of submarine pipeline pipeline section suitable for deep water hydrocarbon field Quick connection operation device and method.The multi-metal Sealing Technology formed according to sealing ring and sealing ring, and combine connection and make The symmetrical formula construction of industry device, the underwater mating for implementing the sea prefabricated and sealer of pipe and connection operation device connect with fixed Work flow is connect, completes the quick connection between deep-water subsea pipeline pipeline section.
The technical solution adopted for the present invention to solve the technical problems is to provide a kind of deep-water subsea pipeline pipeline section connection and made Industry device and method, the connection operation device of deep-water subsea pipeline pipeline section is mainly by anti-corrosion support, movable corrosion-preventing device, extra large Guan Lian Connection device, linkage section corrosion-preventing device, connection pipeline section, lifting rope and sliding sealer composition.Connection operation device global design Constructed for symmetrical formula, wherein anti-corrosion support, movable corrosion-preventing device, extra large pipe connection, lifting rope and sliding sealing Device uses split-type structural, and the anti-corrosion support of two sets of same specifications, movable corrosion-preventing device, extra large pipe connection and lifting rope The both sides of connection pipeline section are respectively symmetrically arranged in, while the sliding sealer of two sets of same specifications is respectively placed in submarine pipeline two The prefabricated anchor ring of pipe end, and linkage section corrosion-preventing device then uses unitary structure with connection pipeline section and linkage section corrosion-preventing device is circumferentially equal It is distributed in the outer ring surface of connection pipeline section.
Connection operation device is using the lens seals ring of extra large pipe connection and the cone-shaped sealing ring of sliding sealer With the multi-metal Sealing Technology of sealing ring composition, the wherein sealing surface of lens seals ring both sides is the ball of axially symmetric arrangement Face, the section of cone-shaped sealing ring is in a rectangular trapezoid, and the section of sealing ring is then hexagonal, lens seals ring, cone-shaped sealing ring Sequentially coaxially the heart is arranged, while the inside of cone-shaped sealing ring and sealing ring is respectively provided with equally distributed gold from inside to outside with sealing ring Belong to silk, and the outer wrap of cone-shaped sealing ring and sealing ring has tinsel.
Sliding sealer uses thick-wall cylinder, and real according to the multi-metal Sealing Technology that sealing ring and sealing ring form Existing being fixedly connected and sealing between extra large pipe connection and the prefabricated anchor ring of submarine pipeline, it includes pushing disc, sliding set, taper Sealing ring, sealing ring and seal body, the material of pushing disc, sliding set and seal body select bidirectional stainless steel.
Seal body is process by cylinder, and slightly and on the outside of it cylinder is thin for the inside cartridge of seal body, seal body The end set cylindricality clip of inside cartridge, the outer ring surface both sides of seal body cylindricality clip are provided with taper snap ring face, and cylindricality The taper snap ring face of clip both sides is engaged with the ring-shaped groove of claw in extra large pipe connection.The ring cavity inwall of seal body by It is interior and it is outer be milled with cylindrical groove, ring-shaped groove, tapered trenches and cylindricality ring cavity successively vertically, in the cylindrical groove of seal body Configure the wild card wing of extra large pipe connection connecting tube, the ring-shaped groove of seal body and the annular ditch of extra large pipe connection connecting tube The axially symmetric arrangement of groove and the symmetrical taper-face ring intracavitary formed configure the lens seals ring of extra large pipe connection;Seal body The section of tapered trenches is in a rectangular trapezoid, and the taper of the conical surface is less than seal body ring where the grooved surface of seal body tapered trenches The taper of the conical surface where the trench bottom surfaces of shape groove, and configuration cone-shaped sealing ring in the ring cavity of seal body tapered trenches, sealing The diameter on the face of cylinder where the diameter of body cylindricality ring cavity is less than the grooved surface of seal body ring-shaped groove.The outer side neck of seal body The end face of body is milled with annular groove and car is formed with sliding screw, and the section of seal body annular groove is in isosceles trapezoid, and seals Configuration sealing ring in the ring cavity of body annular groove.
Pushing disc uses disc, and the diameter of its outer ring surface is equal to the diameter of cylinder on the outside of seal body, and pushing disc Ring cavity inwall uses the ladder surface of revolution, and taper neck, pushing disc taper card are provided with the changes of section of pushing disc ring cavity inwall The big end disc diameter of the conical surface is equal to the diameter of seal body cylindricality ring cavity where groove.It is milled with the card of pushing disc with sealing originally The annular groove of body annular groove same position and specification, and the outer rim of pushing disc is drilled with count same with seal body sliding screw The stud bolt hole of amount and specification, and pushing disc, sliding set and seal body are connected by sliding stud.
Sliding set uses long body, and its outer ring surface is milled with ring-shaped groove and taper snap ring successively vertically from inside to outside, sliding The full lubricating grease of filling in the equidistant hierarchal arrangement of ring-shaped groove of set and each ring-shaped groove is moved, slides the taper snap ring of set with promoting The taper neck of disk is engaged, and realizes the axially position of sliding set, slides the outer ring surface and seal body cylindricality ring cavity of set Precision-fit slides precision-fit between the ring cavity inwall of set and the prefabricated anchor ring of submarine pipeline pipe end and structure simultaneously between inwall Into prismatic pair.
Connection pipeline section be used for realize two sets of sea pipe connections and lift rope between connection, it include connecting pipe and The material of connects bearing, connecting pipe and connects bearing selects bidirectional stainless steel.Connecting pipe uses long body, its ring The diameter of cavity wall is equal to the internal diameter of submarine pipeline, and the two side ends of connecting pipe are respectively equipped with the cylindricality snap ring being arranged symmetrically, even Using interference fit, connecting pipe between the outer ring surface of adapter road cylindricality snap ring and the ring cavity inwall of extra large pipe connection connecting tube The shaft shoulder formed at the changes of section of cylindricality snap ring realizes the axially position of extra large pipe connection connecting tube, and the post of connecting pipe Faying face between shape snap ring and extra large pipe connection connecting tube realizes connection pipeline section and sea by way of implementing circumferential weld Connection between pipe connection connecting tube.The circular groove being evenly distributed is milled with the middle part of connecting pipe, connecting pipe Circular groove hierarchal arrangement and configuration connecting bend in it.
Connects bearing is made up of left support abutment and right support abutment, and left support abutment is identical with specification and right vertically with the group number of right support abutment Claim the both sides for being arranged in linkage section corrosion-preventing device.Left support abutment and right support abutment are divided into two groups and are circumferentially symmetrically arranged in connecting pipe The both sides of surface fixed support and free support, every group of left support abutment and right support abutment are radially placed and contain Liang Ge branches respectively Seat, branch's seat use isosceles trapezoid steel plate, and left support abutment coordinates respectively with each left bearing pin while right support abutment is matched somebody with somebody with each right bearing pin respectively Close and realize being hinged between connecting pipe and lifting rope, the equal car in the shaft end of left bearing pin and right bearing pin is formed with tapped blind hole in addition And hex head screw is respectively configured and is fixed.
It is connected between the protection block of movable corrosion-preventing device and anti-corrosion support by anchor tip and free joint to form Galvanic cell, so as to protect sliding sealer and extra large pipe connection from by ooze corrosion, it includes protection block, fixation connects Head, free joint and connecting line.Movable corrosion-preventing device is evenly distributed on the outer ring surface of sliding sealer, totally three and It is positioned axially, the specification all same of each movable corrosion-preventing device.
Protection block uses uiform section cylinder, the combined protective electrode of its material selection aluminium zinc covering, is taken for submarine pipeline Cathodic protection anti-corrosion during labour, protect the section of block radially outwardly disposed in the narrow side in isosceles trapezoid and its section.Protection The central part of block is drilled with configuration connecting line in elongated circular hole and its elongated circular hole, protects and is drilled with circle respectively on the both sides end face of block Shape blind hole, interference fit, and the circle of its opposite side are used between the blind round hole of protection block side and the outer ring surface of anchor tip Using interference fit between the outer ring surface of shape blind hole and free joint, so as to which protection block be linked to be with anchor tip and free joint One.
Anchor tip and free joint use isometrical straight tube body, and its material selects bidirectional stainless steel, and fixation connects Casting and the combined protective electrode of protection block phase same material, delays during one's term of military service for submarine pipeline in head and free joint Cathodic protection anti-corrosion.The axial length of anchor tip is less than the axial length of free joint, and the end configuration of free joint Taper tube head and realize the closure for combined protective electrode of being cast in free joint.
Connecting line is formed by a branch of wire spiral winding, the combined protective electricity of casting in anchor tip and free joint Pole is connected via connecting line.
It is connected between the connection protection block and connecting pipe of linkage section corrosion-preventing device by two connecting bends to form original Battery, so as to protect connection pipeline section from by ooze corrosion, it includes connection protection block, connecting bend and linkage section wiring.Even Connect section corrosion-preventing device to be evenly distributed on the outer ring surface of connection pipeline section, totally four and positioned axially, each linkage section anti-corrosion The specification all same of device.
The structure and material of connection protection block are identical with the protection block of movable corrosion-preventing device, the circle of connection protection block both sides Using interference fit between blind hole and the outer ring surface of connecting bend, so as to which connection protection block and the connecting bend of its both sides are linked to be One.Two connecting bends are symmetrically arranged in the both sides of connection protection block, and connecting bend uses isometrical bent tubular body, its material selection Bidirectional stainless steel, combined protective electrode of the interior casting of connecting bend with being connected protection block phase same material.Linkage section wiring Structure and material it is identical with the connecting line of movable corrosion-preventing device, the both ends of linkage section wiring in connecting bend respectively with casting Combined protective electrode is connected.
Anti-corrosion support is used for realizing the positioning of movable corrosion-preventing device, and complete in extra large pipe connection hydraulic propelling system and The connection of each hydraulic cylinder of hydraulic pressure docking system, it is made up of fixed support and free support, and its material selects bidirectional not Become rusty steel.Circumferentially uniform welding is on the outer ring surface of extra large pipe connection connecting tube for fixed support, and free support is then circumferentially For uniform welding on the outer ring surface of seal body, fixed support is identical with specification and right in groups vertically with the quantity of free support Claim arrangement.Every group of fixed support and free support combine by rectangle bloom and trapezoidal bloom, while every group of fixed support And its trapezoidal bloom slant setting radially arranged with the rectangle bloom of free support and the overall outward appearance for showing flat U-shaped.
Support bracket fastened rectangle bloom is radially sequentially provided with rectangle eyelet, circular aperture and blind round hole, fixed support Rectangle eyelet be connected with the hydraulic cylinder of extra large pipe connection hydraulic propelling system, support bracket fastened circular aperture and extra large Guan Lian The locating rod of connection device is connected, and support bracket fastened blind round hole is then between the outer ring surface of anchor tip using interference fit And realize the fixation of movable corrosion-preventing device one end.The rectangle bloom of free support is radially sequentially provided with rectangle square hole and rectangle ditch Groove, the rectangle square hole of free support are connected with the hydraulic cylinder of extra large pipe connection hydraulic pressure docking system, and dissociate support rectangle ditch The trench bottom surfaces of groove are on the same face of cylinder with the ring cavity inwall of fixed support blind round hole, and free support rectangle groove Trench bottom surfaces and free joint outer ring surface between precision-fit and form prismatic pair so that movable corrosion-preventing device is another One end is in slidable state vertically.
Lifting rope is used to completing the lifting operation of a whole set of connection operation device, and the lifting ropes of two sets of same specifications is along axle To the both sides for being symmetrically arranged in connection pipeline section.Often set lifting rope includes a main rope and reducing lock ring and two points of ropes Rope and cable nipple, and the axis of the center line and connecting pipe of main rope and reducing lock ring intersects vertically, two points of ropes and Cable nipple is circumferentially symmetrically arranged in the both sides of fixed support and free support directly over connecting pipe.Main rope lower end is divided equally Go out two stock ropes, main rope and the binding site setting reducing lock ring for dividing rope, the both ends of reducing lock ring are respectively equipped with epicone Ring and lower conical ring, the upper conical ring central part of reducing lock ring are drilled with a big lock hole and pull out main rope, and its lower conical ring Central part then sets two small lockholes being arranged symmetrically and pulls out a point rope respectively.Cable nipple includes top connection and connect with Head two parts, the top connection both ends of cable nipple are provided with boss, and respectively thread cutting and on connect point rope and lower company's rope connects The lower contact of head, the lower contact of cable nipple are connected by left support abutment and right support abutment with connecting pipe respectively.
The connection operation method of deep-water subsea pipeline pipeline section implements the pre- manufacturing of submarine pipeline successively, sealer docking is made Industry, connection operation device butt-joint operation, the underwater a whole set of work flow for being fixedly connected with operation and under water coating and dismounting operation, The final quick connection for realizing deep-water subsea pipeline.
The pre- manufacturing of submarine pipeline is used for cutting off broken pipe and polish the prefabricated anchor ring of the pipe end of submarine pipeline two, and it flows Cheng Wei, broken pipe is cut off by the way of underwater cold cut is cut, the damaged face of submarine pipeline is located at the middle part of broken pipe, excision Broken pipe afterwards is lifted to workboat by lifting rope;Then, the cement counterweight of the pipe end of submarine pipeline two is cleared up successively Two pipe ends of submarine pipeline, are then polished into isometrical prefabricated anchor ring, and polished by layer and anticorrosive coat respectively using sander Prefabricated anchor ring be engaged with the inwall of sliding sealer, while the end of prefabricated anchor ring polish taper groove.
Sealer butt-joint operation completes the underwater mating between sliding sealer and prefabricated anchor ring, and its flow is hoisting rope Rope is connected with free support and is lifted two sets of sliding sealers to submarine pipeline respectively by the loop wheel machine on workboat Two pipe ends, carry out the inwall of positioning sliding formula sealer according to the taper groove on prefabricated anchor ring, and prefabricated anchor ring is covered with sliding Ring cavity inwall keep fitting, sliding set and seal body are then made along prefabricated anchor ring axial slip by hoisting rig, directly To the end face of sliding set untill the shaft shoulder at prefabricated torroidal section change is combined.
Connection operation device butt-joint operation complete connection operation device underwater lifting and its with the prefabricated anchor ring of submarine pipeline Between underwater mating, its flow is, according to loop wheel machine and lifting rope by connection operation device lift to the pipe end of submarine pipeline two it Between position, then completed using underwater robot between each free support and extra large each hydraulic cylinder of pipe connection hydraulic pressure docking system It is be hinged;Then, according to the eccentric throw between connecting pipe and prefabricated anchor ring, decentralization lifting rope is continued, until hydraulic pressure docking system Untill the hydraulic cylinder level of approximation of system;Then, open hydraulic pressure docking system and sliding sealer edge is promoted by free support Prefabricated anchor ring axially promotes, until the wild card wing of extra large pipe connection connecting tube is slid completely into the cylindrical groove of seal body simultaneously Untill the free joint of movable corrosion-preventing device is slipped into the rectangle groove of free support.
It is underwater to be fixedly connected with the sliding sealer of operation completion and being fixedly connected between extra large pipe connection and prefabricated anchor ring With sealing, its flow is to open the hydraulic propelling system of extra large pipe connection and drive extra large pipe connection by fixed support Sliding cover axially promote, and then promote the claw of extra large pipe connection to rotate and make the taper snap ring of seal body cylindricality clip Face is engaged with the ring-shaped groove of claw, according to the clamping force between seal body and extra large pipe connection connecting tube, extra large pipe connection The lens seals ring of device, which produces, to be plastically deformed and forms metal sealing, is completed between sliding sealer and extra large pipe connection It is fixedly connected and seals, then dismounting lifting rope;Finally, tightened respectively using underwater robot each on sliding sealer Stud is slid, covers transmitted thrust according to pushing disc and sliding, cone-shaped sealing ring and sealing ring are deformed and formed respectively Metal sealing, complete being fixedly connected between sliding sealer and prefabricated anchor ring and seal.
Underwater coating completes the underwater dismounting of hydraulic cylinder with dismounting operation and prefabricated anchor ring, free support connect with extra large pipe The underwater coating of device, its flow are to dismantle each hydraulic cylinder of extra large pipe connection respectively using underwater robot, then pass through Each hydraulic cylinder is recycled on workboat by loop wheel machine and lifting rope;Then, the coating glass in free support rectangle groove successively Glue is untill the top surface of institute's filling glass glue and the groove either flush of free support rectangle groove, in prefabricated anchor ring with promoting Coating glass glue in the ring-shaped groove formed between disk is until the anchor ring of institute's filling glass glue is concordant with the outer ring surface of submarine pipeline Untill, and in the toroidal cavity between the positioning disk and sliding disk of extra large pipe connection coating glass glue until institute's filling glass Untill the anchor ring of glue is concordant with the outer ring surface of positioning disk, finally coats again and recover the anti-corrosion around the pipe end of submarine pipeline two Layer.
What the present invention can reach has the technical effect that, the global design of connection operation device constructs for symmetrical formula, and according to The multi-metal Sealing Technology formed according to lens seals ring and cone-shaped sealing ring and sealing ring, the pre- manufacturing of implementation submarine pipeline, Sealer butt-joint operation, connection operation device butt-joint operation, operation and underwater coating are fixedly connected with water and dismantles operation A whole set of work flow, complete the quick connection between deep-water subsea pipeline pipeline section;Sliding sealer uses thick-wall cylinder, and according to Extra large pipe connection and being fixedly connected and sealing between prefabricated anchor ring are completed according to multi-metal Sealing Technology;Connection pipeline section realizes two Cover extra large pipe connection and lift the connection between rope, and the lifting of a whole set of connection operation device, anti-corrosion are completed by lifting rope Support realizes the positioning of movable corrosion-preventing device and the connection of each hydraulic cylinder of extra large pipe connection;The protection block of movable corrosion-preventing device with It is connected between anti-corrosion support by anchor tip and free joint and the connection of linkage section corrosion-preventing device is protected between block and connecting pipe It is connected by two connecting bends to form galvanic cell, so as to protect sliding sealer, extra large pipe connection and connecting tube Section is from by ooze corrosion.
Brief description of the drawings
The present invention is further illustrated below in conjunction with the accompanying drawings, but the invention is not limited in following examples.
Fig. 1 is connected according to a kind of typical case of deep-water subsea pipeline pipeline section connection operation device and method proposed by the invention Connect apparatus for work structure diagram.
Fig. 2 is a kind of structure diagram of sliding sealer in deep-water subsea pipeline pipeline section connection operation device and method.
Fig. 3 is anti-corrosion support and movable corrosion-preventing device in a kind of deep-water subsea pipeline pipeline section connection operation device and method Structure diagram.
Fig. 4 be a kind of deep-water subsea pipeline pipeline section connection operation device and method middle connecting segment corrosion-preventing device, connection pipeline section and Lift the structure diagram of rope.
Fig. 5 is Fig. 4 left view.
Fig. 6 is a kind of flow letter of the pre- manufacturing of submarine pipeline in deep-water subsea pipeline pipeline section connection operation device and method Figure.
Fig. 7 is a kind of flow letter of sealer butt-joint operation in deep-water subsea pipeline pipeline section connection operation device and method Figure.
Fig. 8 is a kind of stream of connection operation device butt-joint operation in deep-water subsea pipeline pipeline section connection operation device and method Journey sketch.
Fig. 9 is the flow letter that operation is fixedly connected with a kind of deep-water subsea pipeline pipeline section connection operation device and method reclaimed water Figure.
Figure 10 is the stream for coating and dismantling operation under a kind of deep-water subsea pipeline pipeline section connection operation device and method reclaimed water Journey sketch.
1- submarine pipelines in figure, 2- anti-corrosion supports, the movable corrosion-preventing devices of 3-, 4- seas pipe connection, 5- connections Section corrosion-preventing device, 6- connection pipeline sections, 7- lifting ropes, the sliding sealers of 8-, 9- pushing discs, 10- sealing rings, 11- are slided Move set, 12- cone-shaped sealing rings, 13- seal bodies, 14- dissociate support, and 15- dissociate joint, and 16- protects block, 17- companies Wiring, 18- anchor tips, 19- fixed supports, 20- main ropes, 21- reducing lock rings, 22- divide rope, and 23- ropes connect Head, 24- left support abutments, the left bearing pins of 25-, 26- connections protection block, 27- linkage section wiring, 28- connecting bends, the right pins of 29- Axle, 30- right support abutments, 31- connecting pipes, 32- broken pipes, the prefabricated anchor rings of 33-.
Embodiment
In Fig. 1, the connection operation device of deep-water subsea pipeline pipeline section mainly by anti-corrosion support 2, movable corrosion-preventing device 3, Extra large pipe connection 4, linkage section corrosion-preventing device 5, connection pipeline section 6, lifting rope 7 and sliding sealer 8 form, its global design Constructed for symmetrical formula, two sets of anti-corrosion supports 2, movable corrosion-preventing device 3, extra large pipe connection 4 and lifting rope 7 are respectively symmetrically The both sides of connection pipeline section 6 are arranged in, two sets of sliding sealers 8 are respectively placed in the prefabricated anchor ring of 1 liang of pipe end of submarine pipeline, three Movable corrosion-preventing device 3 is evenly distributed in the outer ring surface of the sliding seal body of sealer 8, and four linkage section corrosion-preventing devices 5 are along week To the outer ring surface for being distributed in connection pipeline section 6.
In Fig. 1, the connection operation method of deep-water subsea pipeline pipeline section implements 1 pre- manufacturing of submarine pipeline successively, sliding The sealer butt-joint operation of formula sealer 8, connection operation device butt-joint operation, sliding sealer 8 and extra large pipe connection 4 and The underwater of 1 prefabricated anchor ring of submarine pipeline is fixedly connected with operation, and 1 prefabricated anchor ring of submarine pipeline, anti-corrosion support 2 dissociate support and sea pipe The a whole set of work flow of the underwater dismounting operation of 4 each hydraulic cylinder of underwater coating operation and extra large pipe connection of attachment means 4, The final quick connection for realizing deep-water subsea pipeline.
In Fig. 1, deep-water subsea pipeline pipeline section connection operation device assembling before, anti-corrosion support 2, extra large pipe connection 4, The outer surface of connection pipeline section 6 and the main element of sliding sealer 8 carries out spray painting preservative treatment respectively, movable corrosion-preventing device 3 Free joint insert anti-corrosion support 2 dissociate support rectangle groove in, should flexibly move and fluent, sliding sealer 8 Sliding set should normally slide and fluent along the ring cavity inwall of its seal body, and keep the seal body of sliding sealer 8 The cleaning of connecting pipe inwall, finally checks lens seals ring and the sliding of extra large pipe connection 4 in inwall and connection pipeline section 6 The sealing ring and cone-shaped sealing ring of formula sealer 8 have not damaged, and whether check at each bearing pin and thread connection firmly and has rustless Erosion.
In Fig. 1, during the connection operation device assembling of deep-water subsea pipeline pipeline section, the fixed support edge week of anti-corrosion support 2 To uniform welding on the outer ring surface of the extra large connecting tube of pipe connection 4, and the then circumferentially uniformly weldering of the free support of anti-corrosion support 2 It is connected on the outer ring surface of the sliding seal body of sealer 8, then movable corrosion-preventing device 3 is connected to anti-corrosion by its anchor tip On support 2, linkage section corrosion-preventing device 5 is connected through elbow and is welded on the outer ring surface of the connection connecting pipe of pipeline section 6, finally hangs Dress rope 7 is connected on connection pipeline section 6 by left bearing pin and right bearing pin, and extra large pipe connection 4 is connected through pipe and is welded in Connect the both sides of pipeline section 6.
In fig. 2, sliding set 11 and the ring cavity inner diameter and sealing ring 10 of seal body 13 in sliding sealer 8 It is consistent with the diameter of 1 prefabricated anchor ring of submarine pipeline with the internal diameter of cone-shaped sealing ring 12, the axle of pushing disc 9 and seal body 13 It is less than the axial length of 1 prefabricated anchor ring of submarine pipeline to length sum, the specification of sealing ring 10 needs to consider submarine pipeline 1 Type selecting is carried out after the factors such as the physical property and pressure of surrounding seawater, while the specification of cone-shaped sealing ring 12 needs to consider Submarine Pipeline In road 1 type selecting is carried out after the factor such as oil gas medium physical property and maximum delivery pressure.
In fig. 2, the cone-shaped sealing ring 12 of sliding sealer 8 realizes sliding sealing by the thrust of sliding set 11 Being fixedly connected and sealing between device 8 and 1 prefabricated anchor ring of submarine pipeline, and sealing ring 10 is realized by the thrust of pushing disc 9 Sealing between pushing disc 9 and seal body 13, while the lens seals ring of extra large pipe connection 4 relies on the cylindricality of seal body 13 The clamping of clip and the connecting tube of extra large pipe connection 4 and realize the fixed company between sliding sealer 8 and extra large pipe connection 4 Connect and seal.
In figure 3, the specification of support 14 of dissociating in anti-corrosion support 2 and quantity are consistent with fixed support 19, movable The specification of block 16 is protected to connect according to the active time and seal body 13 and extra large pipe connection 4 of submarine pipeline 1 in corrosion-preventing device 3 The factors such as the volume sum of adapter are designed, the rule for combined protective electrode of being cast in free joint 15 and anchor tip 18 Lattice need to consider the body of the extension active time of submarine pipeline 1 and seal body 13 and the connecting tube of extra large pipe connection 4 Type selecting is carried out after the factors such as product sum, the length of connecting line 17 is consistent with protecting the axial length of block 16.
In figure 3, the rectangle square hole of free support 14 and the extra large hydraulic pressure docking system of pipe connection 4 in anti-corrosion support 2 Each hydraulic cylinder is connected, and prismatic pair, the rectangle of fixed support 19 are formed between the rectangle groove and free joint 15 of free support 14 Eyelet, circular aperture and blind round hole each hydraulic cylinder, the extra large pipe connection with the extra large hydraulic propelling system of pipe connection 4 respectively 4 locating rod is connected with anchor tip 18.The protection block 16 of movable corrosion-preventing device 3 passes through free joint 15 and free support 14 Be connected and be connected by anchor tip 18 with fixed support 19, the both ends of connecting line 17 respectively with free joint 15 and anchor tip The combined protective electrode of casting is connected in 18.
In figures 4 and 5, active time of the specification of connection protection block 26 according to submarine pipeline 1 in linkage section corrosion-preventing device 5 And the factor such as volume of connecting pipe 31 is designed, the specification needs for combined protective electrode of being cast in connecting bend 28 Type selecting is carried out after considering the factor such as the extension active time of submarine pipeline 1 and the volume of connecting pipe 31, linkage section connects The length of line 27 is consistent with the axial length of connection protection block 26.Connect the ring cavity inner diameter of connecting pipe 31 in pipeline section 6 It is consistent with the internal diameter of submarine pipeline 1, and the axial length of connecting pipe 31 cuts down broken pipe with submarine pipeline 1 Axial length it is consistent, lift main rope 20 in rope 7 and divide the sea of the specification of rope 22 according to marine site where lifting operation Max. hook load required for condition and a whole set of connection operation device of lifting is designed.
In figures 4 and 5, the connection protection block 26 of linkage section corrosion-preventing device 5 passes through connecting bend 28 and the phase of connecting pipe 31 Even, the combined protective electrode of casting is then connected by linkage section wiring 27 in connecting bend 28.Connected in connection pipeline section 6 The both sides of pipeline 31 respectively configure a set of extra large pipe connection 4, and cable nipple 23 is connected and led to left support abutment 24 by left bearing pin 25 Right bearing pin 29 is crossed with right support abutment 30 to be connected so as to which lifting rope 7 be connected with connecting pipe 31.Main rope 20 and divide rope 22 come from same strand rope and main rope 20 and divide the binding site of rope 22 to be locked greatly by one of reducing lock ring 21 respectively Hole and two small lockholes are locked, and divide the lower end of rope 22 to be connected by screw thread with cable nipple 23.
In figure 6, in the prefabricated work flow of submarine pipeline, what the broken pipe 32 of submarine pipeline 1 was cut by underwater cold cut Mode is cut off, and the axial length of broken pipe 32 is more than 1.5 times of the damaged face outline of submarine pipeline 1, and passes through loop wheel machine Lifting is implemented to the broken pipe 32 after cutting with lifting rope 7.Implement the pre- making of submarine pipeline 1 using underwater sander Industry, prefabricated anchor ring 33 is polished respectively in two pipe ends of submarine pipeline 1, polish the axial length of prefabricated anchor ring 33 according to sliding The axial length of the inwall of shifting formula sealer 8 is adjusted.
In the figure 7, in sealer butt-joint operation flow, lifting rope 7 is connected by free support 14 with sliding sealer 8 Integrally, sliding sealer 8 is lifted to two pipe ends of submarine pipeline 1, and the taper groove according to prefabricated anchor ring 33, which is caught, to be slided The ring cavity inwall of set 11 is moved, then continues to translate sliding sealer 8 by loop wheel machine and lifting rope 7, and according to sliding set 11 Prismatic pair between the ring cavity inwall and prefabricated anchor ring 33 of seal body 13, and make the lens seals ring of extra large pipe connection 4 And sealing ring 10 and cone-shaped sealing ring 12, together with sliding set 11 and the axial slip of seal body 13, finally sliding covers 11 and existed Positioning is completed at the shaft shoulder of prefabricated anchor ring 33.
In fig. 8, in connection operation device butt-joint operation flow, connection operation device is by inserting left bearing pin 25 and right pin Axle 29 and the lower end of cable nipple 23 for being connected to lifting rope 7, connection operation device lifted to two pipe ends of submarine pipeline 1, even Eccentric throw between adapter road 31 and prefabricated anchor ring 33 is Δ e, now using underwater robot by the extra large hydraulic pressure pair of pipe connection 4 Each hydraulic cylinder of welding system is connected in the rectangle square hole of free support 14 successively, continues decentralization lifting rope 7 and by extra large Guan Lian The wild card wing of the connecting tube of connection device 4 catches the cylindrical groove of seal body 13, and then multiple directional control valve is extra large pipe connection 4 Hydraulic pressure docking system supplies and distribution hydraulic oil, and is dissociated by the Hydraulic Cylinder of the extra large hydraulic pressure docking system of pipe connection 4 Support 14 is along the prismatic pair axial slip Δ L between the rectangle groove and free joint 15 of free support 141, while it is sliding close Device 8 is sealed with free support 14 along prefabricated anchor ring 33 also axial slip Δ L together1
In fig.9, it is fixedly connected under water in work flow, multiple directional control valve is the hydraulic drive system of extra large pipe connection 4 System supply and distribution hydraulic oil, each hydraulic cylinder of the extra large hydraulic propelling system of pipe connection 4 so that fixed support 19 is the strong point and Promote the sliding cover axial slip Δ L of extra large pipe connection 42, and make the claw clamping seal body 13 of extra large pipe connection 4 Cylindricality clip, the lens seals ring of extra large pipe connection 4 form metal sealing after producing plastic deformation radially and axially.Connect , each left bearing pin 25 and right bearing pin 29 are extracted using underwater robot, and dismantle lower lifting rope 7, then utilize underwater People tightens each sliding stud of sliding sealer 8, and pushing disc 9 and sliding set 11 promote sealing ring 10 and cone-shaped sealing ring together 12 displacements being axially moveable reach Δ L3Metal sealing is formed afterwards.
In Fig. 10, in coating under water and dismounting work flow, extract each bearing pin using underwater robot and dismantle respectively Each hydraulic cylinder of extra large pipe connection 4, the hydraulic cylinder disassembled are recycled on workboat by lifting rope 7.Then, swimming Realize movable corrosion-preventing device 3 from coating glass glue in the rectangle groove of support 14 and dissociate the one end of joint 15 after connection operation It is fixed, coating glass glue in the ring-shaped groove formed between prefabricated anchor ring 33 and pushing disc 9 and realize prefabricated after connection operation The isolation of seawater at the exposed position of anchor ring 33, and in the toroidal cavity between the positioning disk and sliding disk of extra large pipe connection 4 Coating glass glue and realize and disk fixation vertically slid in extra large pipe connection 4.
The various embodiments described above are merely to illustrate the present invention, wherein the structure of each part, connected mode etc. are all can be Change, every equivalents carried out on the basis of technical solution of the present invention and improvement, it should not exclude the present invention's Outside protection domain.

Claims (10)

1. a kind of deep-water subsea pipeline pipeline section connection operation device and method, the anti-corrosion of two sets of same specifications in connection operation device Support, movable corrosion-preventing device, extra large pipe connection and lifting rope are respectively symmetrically arranged in the both sides of connection pipeline section, and two sets same The sliding sealer of specification is respectively placed in the prefabricated anchor ring of the pipe end of submarine pipeline two, and linkage section corrosion-preventing device is evenly distributed in even The outer ring surface of nozzle belt;The global design of connection operation device constructs for symmetrical formula, and close using lens seals ring and taper The multi-metal Sealing Technology of seal ring and sealing ring composition, the sealing surface of lens seals ring both sides is along axle in extra large pipe connection To the sphere being arranged symmetrically, the section of cone-shaped sealing ring is in a rectangular trapezoid, and the section of sealing ring is then hexagonal;Connection operation side Method implements the pre- manufacturing of submarine pipeline, sealer butt-joint operation, connection operation device butt-joint operation, is fixedly connected with work under water successively Industry and a whole set of work flow of underwater coating and dismounting operation, complete the quick connection of deep-water subsea pipeline pipeline section, and its feature exists In:
One sliding sealer;The sliding sealer uses thick-wall cylinder, and seal body is process by cylinder, and seals The inside cartridge of body is thick and its outside cylinder is thin, the end set cylindricality clip of seal body inside cartridge, seal body Ring cavity inwall is milled with cylindrical groove, ring-shaped groove, tapered trenches and cylindricality ring cavity, seal body cone successively vertically from inside to outside Configuration cone-shaped sealing ring in the ring cavity of shape groove, the end face of cylinder is milled with annular groove, and seal body ring on the outside of seal body Configuration sealing ring in the ring cavity of connected in star;Pushing disc uses disc, and its ring cavity inwall uses the ladder surface of revolution, pushing disc ring cavity Taper neck is provided with the changes of section of inwall, and be milled with the card of pushing disc with seal body annular groove same position and The annular groove of specification;Sliding set uses long body, and its outer ring surface is milled with ring-shaped groove and taper successively vertically from inside to outside Snap ring;
One connection pipeline section;The connection pipeline section realizes two sets of sea pipe connections and lifts the connection between rope, connecting pipe Using long body, its two side ends is respectively equipped with the cylindricality snap ring being arranged symmetrically, and is milled with what is be evenly distributed in the middle part of connecting pipe Circular groove and configuration connecting bend in it;Connects bearing is made up of left support abutment and right support abutment, and left support abutment and right support abutment are divided into Two groups and circumferentially it is symmetrically arranged in the both sides of fixed support and free support directly over connecting pipe;
One movable corrosion-preventing device;By anchor tip and free connect between the protection block and anti-corrosion support of the movable corrosion-preventing device Head is connected and forms galvanic cell, and movable corrosion-preventing device is evenly distributed on the outer ring surface of sliding sealer, totally three and It is positioned axially;Protection block use uiform section cylinder, and its section is in the narrow edge radially cloth in isosceles trapezoid and its section Put, protect the central part of block to be drilled with configuration connecting line in elongated circular hole and its elongated circular hole, protect and divide on the both sides end face of block Blind round hole is not drilled with it;Anchor tip and free joint use isometrical straight tube body, and connecting line is by a branch of wire spiral winding Form;
One linkage section corrosion-preventing device;Pass through two connecting bends between the connection protection block and connecting pipe of the linkage section corrosion-preventing device Be connected and form galvanic cell, linkage section corrosion-preventing device totally four and positioned axially, the structure and material of connection protection block with The protection block of movable corrosion-preventing device is identical, and two connecting bends are symmetrically arranged in the both sides of connection protection block, connecting bend use etc. The bent tubular body in footpath, the both ends of linkage section wiring are connected with the combined protective electrode cast in connecting bend respectively;
One anti-corrosion support;Fixed support is identical with specification and right in groups vertically with the quantity of free support in the anti-corrosion support Claim arrangement, every group of fixed support and free support combine by rectangle bloom and trapezoidal bloom, while every group of fixed support And its trapezoidal bloom slant setting radially arranged with the rectangle bloom of free support and the overall outward appearance for showing flat U-shaped;Gu The rectangle bloom of fixed rack is radially sequentially provided with rectangle eyelet, circular aperture and blind round hole, the rectangle bloom for the support that dissociates Rectangle square hole and rectangle groove are radially sequentially provided with, the trench bottom surfaces of support rectangle groove of dissociating and the outer ring surface of free joint Between precision-fit and form prismatic pair so that one end of movable corrosion-preventing device is in slidable state vertically;
One lifting rope;The center line of main rope and reducing lock ring phase vertical with the axis of connecting pipe in the lifting rope Hand over, two are divided to rope and cable nipple to be circumferentially symmetrically arranged in the two of connecting pipe surface fixed support and free support Side;Main rope lower end separates two stock ropes, main rope and the binding site setting reducing lock ring for dividing rope, reducing lock ring Both ends are respectively equipped with conical ring and lower conical ring, and cable nipple includes top connection and lower contact two parts;
The pre- manufacturing of submarine pipeline is used for cutting off broken pipe and polishing the prefabricated anchor ring of the pipe end of submarine pipeline two, described Sealer butt-joint operation completes the underwater mating between sliding sealer and prefabricated anchor ring, the connection operation device butt-joint operation The underwater lifting of connection operation device and its underwater mating between the prefabricated anchor ring of submarine pipeline are completed, it is described to be fixedly connected under water Operation is completed sliding sealer and being fixedly connected between extra large pipe connection and prefabricated anchor ring and sealed, the underwater coating and Dismantle operation and complete the underwater dismounting of hydraulic cylinder and the underwater coating of prefabricated anchor ring, free support and extra large pipe connection.
2. deep-water subsea pipeline pipeline section connection operation device and method according to claim 1, it is characterised in that:The company Anti-corrosion support, movable corrosion-preventing device, extra large pipe connection, lifting rope and the sliding sealer for connecing apparatus for work use split Formula structure, and linkage section corrosion-preventing device and connection pipeline section then use unitary structure;
The lens seals ring of the extra large pipe connection and the cone-shaped sealing ring and sealing ring of sliding sealer are from inside to outside Sequentially coaxially the heart is arranged, the inside of cone-shaped sealing ring and sealing ring is respectively provided with equally distributed wire.
3. deep-water subsea pipeline pipeline section connection operation device and method according to claim 1, it is characterised in that:The cunning The outer ring surface both sides of seal body cylindricality clip are provided with taper snap ring face, and the taper card of cylindricality clip both sides in shifting formula sealer Anchor ring is engaged with the ring-shaped groove of claw in extra large pipe connection;The extra large pipe connection of configuration in the cylindrical groove of seal body The wild card wing of connecting tube, the ring-shaped groove of seal body and the axially symmetric arrangement of ring-shaped groove of extra large pipe connection connecting tube And the symmetrical taper-face ring intracavitary formed configures the lens seals ring of extra large pipe connection;The section of seal body tapered trenches is in Right-angled trapezium, the taper of the conical surface is less than the trench bottom surfaces of seal body ring-shaped groove where the grooved surface of seal body tapered trenches The taper of the place conical surface, and the diameter of seal body cylindricality ring cavity is less than the face of cylinder where the grooved surface of seal body ring-shaped groove Diameter, the section of annular groove is in isosceles trapezoid on cylinder on the outside of seal body;
The outer ring surface diameter of the pushing disc is equal to the diameter of cylinder on the outside of seal body, the conical surface where pushing disc taper neck Big end disc diameter is equal to the diameter of seal body cylindricality ring cavity;
The equidistant hierarchal arrangement of ring-shaped groove of the sliding set, and slide the taper neck phase of the taper snap ring and pushing disc of set Coordinate, and realize the axially position of sliding set, slide precision between the outer ring surface of set and the inwall of seal body cylindricality ring cavity and match somebody with somebody Precision-fit between the ring cavity inwall of set and the prefabricated anchor ring of submarine pipeline pipe end is slid during contract and forms prismatic pair.
4. deep-water subsea pipeline pipeline section connection operation device and method according to claim 1, it is characterised in that:The company The ring cavity inner diameter in adapter road is equal to the internal diameter of submarine pipeline, outer ring surface and the extra large pipe connection of connecting pipe cylindricality snap ring Interference fit, and the circular groove hierarchal arrangement of connecting pipe are used between the ring cavity inwall of connecting tube;
The axially symmetric both sides for being arranged in linkage section corrosion-preventing device of left support abutment and right support abutment of the connects bearing, every group of left support abutment Radially placed with right support abutment and contain Liang Ge branches seat respectively, branch's seat uses isosceles trapezoid steel plate.
5. deep-water subsea pipeline pipeline section connection operation device and method according to claim 1, it is characterised in that:It is described can Protected in dynamic formula corrosion-preventing device and interference fit is used between the blind round hole of block side and the outer ring surface of anchor tip, and its opposite side Blind round hole and free joint outer ring surface between using interference fit, so as to will protection block and anchor tip and free joint It is connected;The equal combined protective electrode of casting and protection block phase same material and via being connected in anchor tip and free joint Line is connected, and the axial length of anchor tip is less than the axial length of free joint, the end configuration conial tube for the joint that dissociates Head;
In the linkage section corrosion-preventing device interference is used between the blind round hole of connection protection block both sides and the outer ring surface of connecting bend Coordinate, so as to which connection protection block be connected with the connecting bend of its both sides, casting is with being connected protection block phase in connecting bend The combined protective electrode of same material, the structure and material of linkage section wiring are identical with the connecting line of movable corrosion-preventing device.
6. deep-water subsea pipeline pipeline section connection operation device and method according to claim 1, it is characterised in that:It is described anti- Rotten support is made up of fixed support and free support, fixed support circumferentially uniform welding in the outer of extra large pipe connection connecting tube On anchor ring, and free support then circumferentially uniform welding on the outer ring surface of seal body;
The support bracket fastened rectangle eyelet is connected with the hydraulic cylinder of extra large pipe connection hydraulic propelling system, support bracket fastened Circular aperture is connected with the locating rod of extra large pipe connection, and the support bracket fastened blind round hole then outer ring surface with anchor tip Between using interference fit and realize the fixation of movable corrosion-preventing device one end;
The rectangle square hole of the free support is connected with the hydraulic cylinder of extra large pipe connection hydraulic pressure docking system, and dissociate support square The trench bottom surfaces of shape groove are on the same face of cylinder with the ring cavity inwall of fixed support blind round hole.
7. deep-water subsea pipeline pipeline section connection operation device and method according to claim 1, it is characterised in that:It is described to hang Fill the lifting operation that rope completes a whole set of connection operation device, often set lifting rope include a main rope and reducing lock ring with And two points of ropes and cable nipple;The upper conical ring central part of reducing lock ring is drilled with a big lock hole and pulls out main rope, And the central part of its lower conical ring then sets two small lockholes being arranged symmetrically and pulls out a point rope respectively;
The top connection both ends of cable nipple are provided with boss in the lifting rope, and respectively thread cutting and on connect point rope and under Even the lower contact of cable nipple, the lower contact of cable nipple are connected by left support abutment and right support abutment with connecting pipe respectively.
8. deep-water subsea pipeline pipeline section connection operation device and method according to claim 1, it is characterised in that:It is described close The flow of envelope device butt-joint operation is that lifting rope is connected and sliding by two sets by the loop wheel machine on workboat with free support Sealer lifts to two pipe ends of submarine pipeline respectively, carrys out positioning sliding formula sealer according to the taper groove on prefabricated anchor ring Inwall, and make prefabricated anchor ring keep being bonded with the ring cavity inwall of sliding set, then cover sliding by hoisting rig and seal this Body is along prefabricated anchor ring axial slip, untill sliding the shaft shoulder of the end face of set at prefabricated torroidal section change and being combined.
9. the deep-water subsea pipeline pipeline section connection operation device and method according to claim 1 or 3 or 6, it is characterised in that: The flow of the connection operation device butt-joint operation is to lift connection operation device to Submarine Pipeline according to loop wheel machine and lifting rope Position between the pipe end of road two, then complete each free support and extra large pipe connection hydraulic pressure docking system using underwater robot It is be hinged between each hydraulic cylinder;Then, according to the eccentric throw between connecting pipe and prefabricated anchor ring, decentralization lifting rope is continued, until Untill the hydraulic cylinder level of approximation of hydraulic pressure docking system;Then, open hydraulic pressure docking system and sliding is promoted by free support Formula sealer axially promotes along prefabricated anchor ring, until the wild card wing of extra large pipe connection connecting tube is slid completely into the post of seal body Untill the free joint of connected in star while movable corrosion-preventing device is slipped into the rectangle groove of free support.
10. the deep-water subsea pipeline pipeline section connection operation device and method according to claim 1 or 3 or 6, its feature exist In:The underwater flow for being fixedly connected with operation is to open the hydraulic propelling system of extra large pipe connection and pass through fixed support Drive the sliding cover of extra large pipe connection axially to promote, and then promote the claw of extra large pipe connection to rotate and make seal body post The taper snap ring face of shape clip is engaged with the ring-shaped groove of claw, according between seal body and extra large pipe connection connecting tube Clamping force, the lens seals ring of extra large pipe connection, which produces to be plastically deformed, simultaneously forms metal sealing, complete sliding sealer with Being fixedly connected between extra large pipe connection and seal, then dismounting lifting rope;Finally, cunning is tightened respectively using underwater robot Each sliding stud on shifting formula sealer, cover transmitted thrust, cone-shaped sealing ring and sealing ring point according to pushing disc and sliding It is not deformed and forms metal sealing, completes being fixedly connected between sliding sealer and prefabricated anchor ring and seal;
The flow of the underwater coating and dismounting operation is to dismantle each hydraulic pressure of extra large pipe connection respectively using underwater robot Cylinder, then each hydraulic cylinder is recycled on workboat by loop wheel machine and lifting rope;Then, successively in free support rectangle groove Interior coating glass glue is untill the top surface of institute's filling glass glue and the groove either flush of free support rectangle groove, prefabricated Coating glass glue in the ring-shaped groove formed between anchor ring and pushing disc is until the anchor ring and submarine pipeline of institute filling glass glue Untill outer ring surface is concordant, and extra large pipe connection positioning disk and sliding disk between toroidal cavity in coating glass glue until Untill the anchor ring of institute's filling glass glue is concordant with the outer ring surface of positioning disk, finally coats and recover the pipe end of submarine pipeline two week again The anticorrosive coat enclosed.
CN201710850435.9A 2017-09-20 2017-09-20 A kind of deep-water subsea pipeline pipeline section connection operation device Expired - Fee Related CN107606309B (en)

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CN108397597A (en) * 2018-03-28 2018-08-14 中国石油大学(华东) A kind of extra large pipe connection operation constructing device of cylinder tracheae balance
CN109159828A (en) * 2018-10-15 2019-01-08 东北石油大学 Submarine pipeline connects robot
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